diff options
Diffstat (limited to 'net/rxrpc/conn_event.c')
-rw-r--r-- | net/rxrpc/conn_event.c | 137 |
1 files changed, 18 insertions, 119 deletions
diff --git a/net/rxrpc/conn_event.c b/net/rxrpc/conn_event.c index 8c7938b..0691007 100644 --- a/net/rxrpc/conn_event.c +++ b/net/rxrpc/conn_event.c @@ -15,10 +15,6 @@ #include <linux/net.h> #include <linux/skbuff.h> #include <linux/errqueue.h> -#include <linux/udp.h> -#include <linux/in.h> -#include <linux/in6.h> -#include <linux/icmp.h> #include <net/sock.h> #include <net/af_rxrpc.h> #include <net/ip.h> @@ -140,16 +136,10 @@ static void rxrpc_abort_calls(struct rxrpc_connection *conn, u32 abort_code, int error) { struct rxrpc_call *call; - bool queue; - int i, bit; + int i; _enter("{%d},%x", conn->debug_id, abort_code); - if (compl == RXRPC_CALL_LOCALLY_ABORTED) - bit = RXRPC_CALL_EV_CONN_ABORT; - else - bit = RXRPC_CALL_EV_RCVD_ABORT; - spin_lock(&conn->channel_lock); for (i = 0; i < RXRPC_MAXCALLS; i++) { @@ -157,22 +147,13 @@ static void rxrpc_abort_calls(struct rxrpc_connection *conn, conn->channels[i].call, lockdep_is_held(&conn->channel_lock)); if (call) { - rxrpc_see_call(call); if (compl == RXRPC_CALL_LOCALLY_ABORTED) trace_rxrpc_abort("CON", call->cid, call->call_id, 0, abort_code, error); - - write_lock_bh(&call->state_lock); - if (rxrpc_set_call_completion(call, compl, abort_code, - error)) { - set_bit(bit, &call->events); - queue = true; - } - write_unlock_bh(&call->state_lock); - if (queue) - rxrpc_queue_call(call); - + if (rxrpc_set_call_completion(call, compl, + abort_code, error)) + rxrpc_notify_socket(call); } } @@ -251,17 +232,18 @@ static int rxrpc_abort_connection(struct rxrpc_connection *conn, /* * mark a call as being on a now-secured channel - * - must be called with softirqs disabled + * - must be called with BH's disabled. */ static void rxrpc_call_is_secure(struct rxrpc_call *call) { _enter("%p", call); if (call) { - read_lock(&call->state_lock); - if (call->state < RXRPC_CALL_COMPLETE && - !test_and_set_bit(RXRPC_CALL_EV_SECURED, &call->events)) - rxrpc_queue_call(call); - read_unlock(&call->state_lock); + write_lock_bh(&call->state_lock); + if (call->state == RXRPC_CALL_SERVER_SECURING) { + call->state = RXRPC_CALL_SERVER_ACCEPTING; + rxrpc_notify_socket(call); + } + write_unlock_bh(&call->state_lock); } } @@ -278,7 +260,7 @@ static int rxrpc_process_event(struct rxrpc_connection *conn, int loop, ret; if (conn->state >= RXRPC_CONN_REMOTELY_ABORTED) { - kleave(" = -ECONNABORTED [%u]", conn->state); + _leave(" = -ECONNABORTED [%u]", conn->state); return -ECONNABORTED; } @@ -291,14 +273,14 @@ static int rxrpc_process_event(struct rxrpc_connection *conn, return 0; case RXRPC_PACKET_TYPE_ABORT: - if (skb_copy_bits(skb, 0, &wtmp, sizeof(wtmp)) < 0) + if (skb_copy_bits(skb, sp->offset, &wtmp, sizeof(wtmp)) < 0) return -EPROTO; abort_code = ntohl(wtmp); _proto("Rx ABORT %%%u { ac=%d }", sp->hdr.serial, abort_code); conn->state = RXRPC_CONN_REMOTELY_ABORTED; - rxrpc_abort_calls(conn, 0, RXRPC_CALL_REMOTELY_ABORTED, - abort_code); + rxrpc_abort_calls(conn, RXRPC_CALL_REMOTELY_ABORTED, + abort_code, ECONNABORTED); return -ECONNABORTED; case RXRPC_PACKET_TYPE_CHALLENGE: @@ -323,14 +305,16 @@ static int rxrpc_process_event(struct rxrpc_connection *conn, if (conn->state == RXRPC_CONN_SERVICE_CHALLENGING) { conn->state = RXRPC_CONN_SERVICE; + spin_unlock(&conn->state_lock); for (loop = 0; loop < RXRPC_MAXCALLS; loop++) rxrpc_call_is_secure( rcu_dereference_protected( conn->channels[loop].call, lockdep_is_held(&conn->channel_lock))); + } else { + spin_unlock(&conn->state_lock); } - spin_unlock(&conn->state_lock); spin_unlock(&conn->channel_lock); return 0; @@ -433,88 +417,3 @@ protocol_error: _leave(" [EPROTO]"); goto out; } - -/* - * put a packet up for transport-level abort - */ -void rxrpc_reject_packet(struct rxrpc_local *local, struct sk_buff *skb) -{ - CHECK_SLAB_OKAY(&local->usage); - - skb_queue_tail(&local->reject_queue, skb); - rxrpc_queue_local(local); -} - -/* - * reject packets through the local endpoint - */ -void rxrpc_reject_packets(struct rxrpc_local *local) -{ - union { - struct sockaddr sa; - struct sockaddr_in sin; - } sa; - struct rxrpc_skb_priv *sp; - struct rxrpc_wire_header whdr; - struct sk_buff *skb; - struct msghdr msg; - struct kvec iov[2]; - size_t size; - __be32 code; - - _enter("%d", local->debug_id); - - iov[0].iov_base = &whdr; - iov[0].iov_len = sizeof(whdr); - iov[1].iov_base = &code; - iov[1].iov_len = sizeof(code); - size = sizeof(whdr) + sizeof(code); - - msg.msg_name = &sa; - msg.msg_control = NULL; - msg.msg_controllen = 0; - msg.msg_flags = 0; - - memset(&sa, 0, sizeof(sa)); - sa.sa.sa_family = local->srx.transport.family; - switch (sa.sa.sa_family) { - case AF_INET: - msg.msg_namelen = sizeof(sa.sin); - break; - default: - msg.msg_namelen = 0; - break; - } - - memset(&whdr, 0, sizeof(whdr)); - whdr.type = RXRPC_PACKET_TYPE_ABORT; - - while ((skb = skb_dequeue(&local->reject_queue))) { - rxrpc_see_skb(skb); - sp = rxrpc_skb(skb); - switch (sa.sa.sa_family) { - case AF_INET: - sa.sin.sin_port = udp_hdr(skb)->source; - sa.sin.sin_addr.s_addr = ip_hdr(skb)->saddr; - code = htonl(skb->priority); - - whdr.epoch = htonl(sp->hdr.epoch); - whdr.cid = htonl(sp->hdr.cid); - whdr.callNumber = htonl(sp->hdr.callNumber); - whdr.serviceId = htons(sp->hdr.serviceId); - whdr.flags = sp->hdr.flags; - whdr.flags ^= RXRPC_CLIENT_INITIATED; - whdr.flags &= RXRPC_CLIENT_INITIATED; - - kernel_sendmsg(local->socket, &msg, iov, 2, size); - break; - - default: - break; - } - - rxrpc_free_skb(skb); - } - - _leave(""); -} |